For me, it feels so fake that I'd rather have it not try to be nice. I guess I've gotten a bit used to it and ignore it for most parts.

Yeah it's saccharine. Reminds me quite a lot of Americans who work for tips (e.g. waiters) - disconcertingly friendly.

Someone gave me a great tip though - at least for ChatGPT there's a setting where you can change its personality to "robot". I guess that affects the system prompt in some way but it basically fixes the issue.